Knowledge Hub
Practical guides and playbooks for WhatsApp automation, IVR, CRM, AI hiring, and performance marketing.
VoiceBridge • 11 min
The most common NAT and firewall problems that break duplex RTP: port ranges, symmetric NAT, SIP ALG, wrong advertised IPs, and how to fix them.
2026-02-07 • nat, firewall, rtp
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Database • 8 min
Set up PostgreSQL with PGVector, create embedding tables, indexes, and enable fast vector similarity search for AI features.
2026-02-07 • postgresql, pgvector, vector-db
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Database • 7 min
Safely clean customer data, WhatsApp history, and inventory tables when onboarding a new MYLINEHUB organization.
2026-02-07 • database, cleanup, multi-tenant
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DevOps • 9 min
Install and configure a lightweight self-hosted Git server using Gitea with systemd service and NGINX reverse proxy integration.
2026-02-07 • gitea, git-server, self-hosted
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Deployment • 12 min
Step-by-step production installation of MYLINEHUB on Ubuntu including DNS, firewall, PostgreSQL, NGINX, Java, SSL, and backend deployment.
2026-02-06 • ubuntu, installation, postgresql
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Deployment • 9 min
Generate, renew, and manage SSL certificates for MYLINEHUB using Certbot, PEM conversion, and secure HTTPS deployment.
2026-02-06 • ssl, lets-encrypt, certbot
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Deployment • 10 min
Configure NGINX with HTTPS, frontend hosting, and reverse proxy routing for multiple MYLINEHUB backend services.
2026-02-06 • nginx, reverse-proxy, https
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VoiceBridge • 13 min
A working RTP guide to inject audio back to the caller using ARI ExternalMedia, including RTP headers, payload type, and timing rules.
2026-02-06 • ari, externalmedia, rtp
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VoiceBridge • 12 min
The real causes of one-way audio with ARI ExternalMedia—RTP direction, ports, NAT, SSRC, timing—and fixes that restore duplex media.
2026-02-05 • asterisk, externalmedia, rtp
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